CN210878471U

CN210878471U - Automatic device of screwing up of chassis sub vehicle frame

Info

Publication number: CN210878471U
Application number: CN201921099995.6U
Authority: CN
Inventors: 包阿雷; 张卫国; 袁昊博; 李庆喜; 王庆斌
Original assignee: GAC Motor Co Ltd
Current assignee: GAC Motor Co Ltd
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-06-30
Anticipated expiration: 2029-07-12

Abstract

The utility model relates to an automobile assembling equipment technical field, more specifically relates to an automatic device of screwing up of chassis sub vehicle frame. The device is arranged below a power roller bed of an automobile production line and comprises a rack, a Z-direction movement mechanism, a fixed seat and a tightening device for tightening and fixing a bolt of an auxiliary frame, wherein the Z-direction movement mechanism is fixed on the rack and moves back and forth relative to the rack; the fixing base is arranged on the Z-direction moving mechanism, the tightening device is vertically arranged on the top surface of the fixing base, and the tightening device moves back and forth in the Z direction along with the Z-direction moving mechanism. In addition, an X-direction movement mechanism and a Y-direction movement mechanism for X, Y direction adjustment are further included, and each movement mechanism and the tightening device are controlled by a servo system. The utility model discloses locate automobile production line power roller bed below, do not occupy technology section station, degree of automation is high, effectively reduces the human cost, is applicable to the screwing up of preceding, the back sub vehicle frame of multiple motorcycle type.

Description

Automatic device of screwing up of chassis sub vehicle frame

Technical Field

The utility model relates to an automobile assembling equipment technical field, more specifically relates to an automatic device of screwing up of chassis sub vehicle frame.

Background

Before vehicle chassis, the important process of automobile equipment when operation is screwed up to back sub vehicle frame, on the assembly line, automobile production line power roller bed flow process is generally arranged in to the vehicle, the completion back is closed to chassis power assembly, get into automatic station of screwing up through the skid drive, the location cylinder carries out automatic screwing up to the sub vehicle frame after carrying out the essence location to the skid, 3 points of screwing up of sub vehicle frame before the unilateral generally, 2 points of screwing up of sub vehicle frame behind the unilateral, need occupy two stations and 4 sets of equipment of screwing up and accomplish jointly.

At present, two common methods are adopted, namely 1) after each type of vehicle is closed, bolts are manually pre-screwed, and a rear station is provided with power-assisted equipment to formally fasten a front auxiliary frame and a rear auxiliary frame. The method needs to occupy 2 effective process station stations and 4 operators to carry out fastening operation so as to meet the requirement of mass production operation of various vehicle types, and easily causes the problems of narrow screwing operation space, more operators, low automation rate and the like. 2) The fastening bolts are placed on the vehicle closing tray in advance, the vehicle closing tray enters a rear station to perform tightening operation after the vehicle closing operation is completed, the tightening shaft is switched between fastening point positions through the air cylinder, and because the XYZ coordinate points of the auxiliary frame fastening points of the vehicle types are not uniform, the special fastening position points need to be reformed again for each new vehicle type, and the mass production operation can be met. The method needs to reform equipment clamps, has high investment cost and poor universality, and cannot be suitable for various vehicle types.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome above-mentioned prior art the defect, provide an automatic device of screwing up of chassis sub vehicle frame, locate automobile production line power roller bed below, do not occupy technology section station, degree of automation is high, effectively reduces the human cost, is applicable to the screwing up of preceding, back sub vehicle frame of multiple motorcycle type.

In order to solve the technical problem, the utility model discloses a technical scheme is:

an automatic tightening device for a chassis auxiliary frame is arranged below a power roller bed of an automobile production line and comprises a rack, a Z-direction movement mechanism, a fixed seat and a tightening device for tightening and fixing an auxiliary frame bolt, wherein the Z-direction movement mechanism is fixed on the rack and moves back and forth relative to the rack; the fixing base is arranged on the Z-direction moving mechanism, the tightening device is vertically arranged on the top surface of the fixing base, and the tightening device moves back and forth in the Z direction along with the Z-direction moving mechanism. The rack is arranged on the ground, and the Z-direction movement mechanism is arranged on the rack and can move in the Z direction relative to the rack. The tightening device is fixed on the Z-direction movement mechanism through the fixed seat and moves along with the Z-direction movement mechanism in the Z direction to perform tightening operation.

Furthermore, a Y-direction movement mechanism is arranged between the Z-direction movement mechanism and the rack, and the Y-direction movement mechanism is fixed on the rack and drives the Z-direction movement mechanism to move back and forth in the Y direction. The Y-direction movement mechanism is used for adjusting the Y direction, driving the Z-direction movement mechanism and indirectly driving the tightening device.

Furthermore, an X-direction movement mechanism is further arranged between the Y-direction movement mechanism and the rack, and the X-direction movement mechanism is fixed on the rack and drives the Y-direction movement mechanism and the Z-direction movement mechanism to move back and forth in the X direction. The X-direction movement mechanism is used for adjusting the X direction and driving the Y-direction movement mechanism, the Z-direction movement mechanism and the tightening device to move in the X direction.

Further, the tightening device is an automatic tightening shaft, and a servo system for controlling and providing a power source is connected to the automatic tightening shaft. The automatic tightening shaft is vertically arranged upwards, and the automatic tightening shaft adopts the conventional straight shank automatic tightening shaft which is installed and fixed on the fixed seat for use.

Furthermore, the X-direction movement mechanism, the Y-direction movement mechanism and the Z-direction movement mechanism are all connected with the servo system and controlled by the servo system. The servo system is a common control system in mechanical production equipment, and all the motion mechanisms and the tightening devices are flexibly adjusted and operated through the centralized control of the servo system.

Further, X all includes motion subassembly and inductive switch to motion, Y to motion, Z to motion, the motion subassembly includes mutual sliding fit's slide and linear slide rail, and linear slide rail is fixed to be set up, and the slide makes a round trip to slide along linear slide rail, linear slide rail is located to inductive switch for the motion position and the feedback information of response detection slide to servo. The components of the motion mechanisms are basically the same, but the motion directions are different, so the motion mechanisms are divided into an X-direction motion mechanism, a Y-direction motion mechanism and a Z-direction motion mechanism. The linear sliding rail is a fixed end of the moving component, and the sliding seat is a moving end of the moving component.

Furthermore, the motion assembly further comprises a stop block and a buffer block for limiting protection, the stop block is arranged at two ends of the linear slide rail, and the buffer block is arranged at the front end and the rear end of the motion direction of the slide seat and is kept in the same horizontal straight line with the stop block. The slide slides in linear slide rail's slip track, and for effective spacing, the stopper blocks the slide, and the buffer block collides with the stopper mutually, avoids the slide and stops the stopper rigidity collision and influence the precision.

Furthermore, the motion assembly also comprises a cable tank chain for motion guidance, one end of the cable tank chain is connected with the sliding base, the other end of the cable tank chain is fixedly connected with the rack, and the cable tank chain is arranged according to the motion direction of each motion mechanism and is reserved with enough motion length.

Furthermore, the tightening device is provided with a spiral spring which is sleeved on the output head of the automatic tightening shaft and used for improving the elastic adjusting capacity of the automatic tightening shaft.

Furthermore, the rack is provided with an indicator light for displaying the current working state, and the indicator light is controlled by a servo system. The servo system outputs the working state signal of the current device to an indicator light, and the indicator light is a three-color light generally.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an automatic tightening device for a chassis auxiliary frame, which 1) is hidden under a power roller bed of an automobile production line and does not occupy a process section station; 2) the servo system controls the operation, the automation degree is high, and the labor cost is effectively reduced; 3) meanwhile, the adjustable front sub-frame and rear sub-frame can be adjusted in the direction of X, Y, Z, the distance between the height of a fastening point of different vehicle types and a horizontal plane can be met, and the adjustable front sub-frame and rear sub-frame is suitable for screwing front sub-frames and rear sub-frames of various vehicle types.

Drawings

Fig. 1 is an axonometric view of the overall structure of the present invention.

Fig. 2 is a usage state diagram of the present invention.

Fig. 3 is a side view of the overall structure of the present invention.

Fig. 4 is a side view of the whole structure of the present invention.

The device comprises a power roller bed 1, a rack 2, a 3Z-direction movement mechanism, a 4 fixed seat, a 5 screwing device, a 6Y-direction movement mechanism, a 7X-direction movement mechanism, an 8 induction switch, a 10 sliding seat, a 20 linear sliding rail, a 30 blocking block, a 40 buffer block and a 50 cable tank chain.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limiting the present patent, and those skilled in the art will understand the specific meaning of the terms according to their specific circumstances.

The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:

example 1

As shown in fig. 1-2, the present embodiment provides an automatic chassis subframe tightening device, which is disposed below a power roller bed 1 in an automobile production line, and includes a frame 2, an X-direction moving mechanism 7, a Y-direction moving mechanism 6, a Z-direction moving mechanism 3, a fixing seat 4, and a tightening device 5 for tightening and fixing a subframe bolt, where each of the moving mechanism and the tightening device 5 is connected to a servo system, and is centrally controlled by the servo system and provides a power source.

Specifically, the tightening device 5 is an automatic tightening shaft, which is an existing conventional straight shank automatic tightening shaft and is fixed vertically upward on the fixed base 4 for use, and meanwhile, the tightening device 5 is provided with a spiral spring, which is sleeved on an output head of the automatic tightening shaft, for improving the elastic adjustment capability of the automatic tightening shaft. The automatic tightening shaft keeps a certain floating range of the tightening output shaft, and the self-adaptive roller bed skid stops to deviate, so that the floating range is guaranteed to be +/-2.5 mm. The controller of the automatic tightening shaft can be installed in an external mode, and an aluminum profile support is adopted, so that stability and stability are guaranteed, and shaking are avoided.

The components of the X-direction movement mechanism 7, the Y-direction movement mechanism 6 and the Z-direction movement mechanism 3 are basically the same, but the movement directions are different, so that the components are divided into the X-direction movement mechanism 7, the Y-direction movement mechanism 6 and the Z-direction movement mechanism 3. Specifically, each motion mechanism includes a motion assembly and an inductive switch 8, where the motion assembly includes a slide carriage 10 and a linear slide rail 20 that are slidably engaged with each other, the linear slide rail 20 is fixedly disposed, the slide carriage 10 slides back and forth along the linear slide rail 20, the linear slide rail 20 is a fixed end of the motion assembly, and the slide carriage 10 is a moving end of the motion assembly, as shown in fig. 3 to 4.

In this embodiment, the moving assembly further includes a stop block 30 and a buffer block 40 for limiting and protecting, the stop block 30 is disposed at two ends of the linear slide rail 20, and the buffer blocks 40 are disposed at front and rear ends of the moving direction of the slide carriage 10 and are kept at the same horizontal straight line with the stop block 30. The stop block 30 is used for limiting the sliding range of the sliding seat 10, and the buffer block 40 is used for buffering the collision between the sliding seat 10 and the stop block 30, so as to avoid the direct rigid collision between the sliding seat 10 and the stop block 30 from affecting the precision. The material of the barrier block 30 adopts Q235A, and the material of the buffer block 40 is polyurethane with the hardness of 90D.

In this embodiment, the motion assembly further includes a cable tank chain 50 for motion guidance, one end of the cable tank chain 50 is connected to the slider 10, and the other end is fixedly connected to the frame 2 or the linear guideway 20, and is set according to the motion direction of each motion mechanism and is reserved with a sufficient motion length.

In addition, the inductive switch 8 is disposed on the linear guideway 20, and is used for sensing and detecting the movement position of the sliding base 10 and feeding back information to the servo system.

Specifically, the structural connection relationship of each motion mechanism is as follows, and for better clarity, the linear slide rail 20 and the slide carriage 10 of the X-direction motion mechanism 7 are referred to as an X linear slide rail and an X slide carriage respectively, and similarly, there are a Y linear slide rail, a Y slide carriage, a Z linear slide rail, and a Z slide carriage. As shown in FIG. 2, the frame 2 is placed on the ground, the X linear slide rail is fixed on the frame 2, and the X slide carriage is slidably mounted on the X linear slide rail, wherein one end of a cable tank chain 50 of the X-direction movement mechanism 7 is connected with the X slide carriage, and the other end is fixedly connected with the frame 2. Further, the Y-shaped linear sliding rail is fixed on the X sliding seat and moves along the X direction along with the X sliding seat, the Y sliding seat is installed on the Y-shaped linear sliding rail in a sliding mode, one end of a cable tank chain 50 of the Y-shaped movement mechanism 6 is connected with the Y sliding seat, and the other end of the cable tank chain is fixedly connected with the X sliding seat.

Similarly, Z linear sliding rail is fixed in on the Y slide, follows the motion of Y slide in the Y direction, and Z slide then slidable mounting is in Z linear sliding rail, and wherein Z is connected the Z slide to 50 one ends of 3 cable tank chains of moving mechanism, other end fixed connection Z linear sliding rail, and tightening device 5 follows the motion of Z slide in the Z direction on being fixed in the Z slide through fixing base 4. Generally, the sliding base 10 is engaged with the linear guideway 20 through a rack and pinion to regulate the sliding route.

The servo system is used for centralized control, and the tightening device 5 is moved to a corresponding tightening point for tightening through the matching motion of the X-direction motion mechanism 7, the Y-direction motion mechanism 6 and the Z-direction motion mechanism 3. In order to facilitate the screwing device 5 to correspond to the screwing point of the auxiliary frame, the device is provided with two sets of Y-direction motion mechanisms 6 and Z-direction motion mechanisms 3, one set of Z-direction motion mechanism 3 is independently arranged on one set of Y-direction motion mechanism 6 and keeps symmetrical arrangement, one set of the screwing device 5 is arranged on the left and the right, the X direction needs to be moved simultaneously, the Y, Z direction is independently controlled and can be independently moved.

In addition, the frame 2 is provided with an indicator light for displaying the current working state, and the indicator light is a three-color light and is controlled by a servo system. The screwing is successful and released, the three-color lamp displays green, and the three-color lamp alarms and displays red when the screwing fails; when the sliding seat 10 touches the stop block 30 and the inductive switch 8 detects a position signal, the three-color lamp buzzes to alarm and displays red; the yellow color is displayed when the conveyor line is screwed down and flickers, the yellow color is displayed after the conveyor line stops and the equipment automatically returns to the position, and no alarm is given.

The operation flow of this embodiment: the equipment belongs to fixed-point automatic operation, vehicles are fixed-point and do not follow, and the vehicles flow to the next station after one beat. The specific process is as follows: before the vehicle is about to enter a post, a vehicle body is triggered to enter a post signal, meanwhile, an upper system sends the post vehicle body information to a servo system of the device, corresponding programs are identified by equipment, and meanwhile, the servo system of the device prepares actions (fixed point positioning) of related vehicle types in advance. After the vehicle body is in place, the device executes corresponding actions according to corresponding programs, the high-precision servo mechanism drives each motion mechanism and the tightening device 5 to perform corresponding positioning and fastening operation, one fastening point is fastened, the vehicle moves back automatically, a set distance is moved, the next fastening point is screwed, and the fastening of the two fastening points is completed; after all fastening points are fastened, the fastening shafts automatically return to the original points, an interlocking indicator lamp of the fastening machine is turned on to indicate that the fastening is successful, and the vehicle body is waited to be released; the vehicle body is released, the equipment waits, and the next trolley fastening operation is prepared. The whole process does not need to be operated by personnel, and the tightening shaft can automatically return to the original position after all the tightening points are tightened.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides an automatic device of screwing up of chassis sub vehicle frame, locates car production line power roller bed (1) below, its characterized in that: the auxiliary frame bolt tightening device comprises a rack (2), a Z-direction moving mechanism (3), a fixed seat (4) and a tightening device (5) for tightening and fixing an auxiliary frame bolt, wherein the Z-direction moving mechanism (3) is fixed on the rack (2) and moves back and forth relative to the rack (2); z is located to moving mechanism (3) in fixing base (4), screw up device (5) and vertically locate fixing base (4) top surface, screw up device (5) and follow Z and move back and forth in the Z direction to moving mechanism (3).

2. The automatic tightening device for the chassis subframe according to claim 1, wherein: and a Y-direction moving mechanism (6) is further arranged between the Z-direction moving mechanism (3) and the rack (2), and the Y-direction moving mechanism (6) is fixed on the rack (2) and drives the Z-direction moving mechanism (3) to move back and forth in the Y direction.

3. The automatic tightening device for the chassis subframe according to claim 2, wherein: and an X-direction moving mechanism (7) is further arranged between the Y-direction moving mechanism (6) and the rack (2), and the X-direction moving mechanism (7) is fixed on the rack (2) and drives the Y-direction moving mechanism (6) and the Z-direction moving mechanism (3) to move back and forth in the X direction.

4. The automatic tightening device for the chassis subframe according to claim 3, wherein: the tightening device (5) is an automatic tightening shaft which is connected with a servo system used for controlling and providing a power source.

5. The automatic tightening device for the chassis subframe according to claim 4, wherein: the X-direction movement mechanism (7), the Y-direction movement mechanism (6) and the Z-direction movement mechanism (3) are all connected with the servo system and controlled by the servo system.

6. The automatic tightening device for the chassis subframe according to claim 5, wherein: x all includes motion subassembly and inductive switch (8) to motion (7), Y to motion (6), Z to motion (3), the motion subassembly includes sliding fit's each other slide (10) and linear slide rail (20), and linear slide rail (20) are fixed to be set up, and slide (10) make a round trip to slide along linear slide rail (20), linear slide rail (20) are located in inductive switch (8) for the response detects the motion position and the feedback information of slide (10) to servo.

7. The automatic tightening device for the chassis subframe according to claim 6, wherein: the motion assembly further comprises a blocking block (30) and a buffer block (40) which are used for limiting protection, the blocking block (30) is arranged at two ends of the linear sliding rail (20), the buffer block (40) is arranged at the front end and the rear end of the motion direction of the sliding seat (10), and the front end and the rear end of the motion direction of the sliding seat and the buffer block (30) are kept on the same horizontal straight line.

8. The automatic tightening device for the chassis subframe according to claim 6 or 7, wherein: the motion assembly further comprises a cable tank chain (50) used for motion guiding, one end of the cable tank chain (50) is connected to the sliding base (10), the other end of the cable tank chain is fixedly connected with the rack (2), and the cable tank chain is arranged according to the motion direction of each motion mechanism and is reserved with enough motion length.

9. The automatic tightening device for the chassis subframe according to claim 4, wherein: the tightening device (5) is provided with a spiral spring which is sleeved on an output head of the automatic tightening shaft and used for improving the elastic adjusting capacity of the automatic tightening shaft.

10. The automatic tightening device for the chassis subframe according to claim 5, wherein: the rack (2) is provided with an indicator light for displaying the current working state, and the indicator light is controlled by a servo system.